Click this link on youtube.com, to watch Blackstone, Sr. on the last episode of the TV sitcom, "Mr. Ed".

Mister ED S4 - Part 2 Ed The Shish Kebab

The clip is about 10 minutes long and about 5 minutes into it, Wilbur, (Alan Young) is in a magician's contest where Harry Sr., Dick Zimmerman, and Lou Derman, (who was one of the writers on the show, before he went on to write for, "All in the Family", and more.

I remember an episode of a British SF show called "Blakes 7" (Yes, the apostrophe IS supposed to be missing) In one episode, the characters are seen as phantoms performing to entertain a queen. Vila does a Phantom Tube effect (hinged Phantom Tube at that) after showing the tube empty and closing it up again, the editor cuts to a shot of the queen reacting THEN back to Vila as he produces something from the tube! The actor was livid as he'd actually worked very hard to master that prop and the cut ruined the appearance of the effect!